The Museum of Modern Art has announced a new show, opening this December, focusing on the life and patronage of collector Ileana Sonnabend, a Romanian emigré who at one time was married to Leo Castelli, and presided over the New York art world, eventually developing a collection valued at well over $900 million, and championing artists like Robert Rauschenberg and Mario Merz.  “For us, the emphasis will clearly be on the history she made.” Says Chief Curator Ann Temkin. (more…)